The study, “Parallel Pathways for Serotonin Biosynthesis and Metabolism in C. elegans,” challenges the existing knowledge of how serotonin is produced and what happens to the neurotransmitter ...

The metabolism of tryptophan within the human body can follow one of two pathways, toward serotonin or toward production of kynurenine, a substance that plays a role in niacin production.

Tryptophan is a precursor of serotonin, the neurotransmitter responsible for mood. A new intermediate step and unexpected enzymatic activity in a metabolic pathway in the body, which could lead to ...

which is critical for normal food intake and metabolism, appears to regulate bone mass and suppress appetite by acting mainly through serotonin pathways in the brain, according to a recent study ...

The second metabolic pathway involves decarboxylation of tryptophan ... Since bananas contain serotonin and their ingestion elevates urinary 5-hydroxyindoleacetic acid, it became of interest ...

Scientists are only just now learning about the roles these intestinal serotonin secretions play in regulating everything from our gastrointestinal movements, to our general metabolism.

the kynurenine and serotonin pathways in body cells, and via the indole pathway in gut bacteria. Disrupted tryptophan metabolism has been linked to metabolic diseases, including obesity and CVD.

"This study helps close the circle on the role of the melanocortin pathway and adds the serotonin system to the growing list of metabolic signals – including leptin – that act on the brain's ...